title: Surface property change of graphene using nitrogen ion.
abstract: We introduced nitrogen ions to modify the graphene surface and its property changes were investigated. A graphene layer grown on 6H-SiC(0001) was irradiated with 100 eV nitrogen ions. Surface property changes were studied using photoemission spectroscopy (PES), near edge x-ray adsorption spectroscopy (NEXAFS), and atomic force microscopy(AFM). N 1s core level spectra show that three kinds of nitrogen species, nitrogen gas, graphite-like and pyridine-like nitrogen were induced on the nitrogen ion implanted graphene surface.
authors.affiliation: Beamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang, Kyongbuk, Republic of Korea.
authors.forename: Ki-Jeong
authors.initials: KJ
authors.lastname: Kim
authors.forename: Hangil
authors.initials: H
authors.lastname: Lee
authors.forename: Junghun
authors.initials: J
authors.lastname: Choi
authors.forename: Hankoo
authors.initials: H
authors.lastname: Lee
authors.forename: Min Cherl
authors.initials: MC
authors.lastname: Jung
authors.forename: H J
authors.initials: HJ
authors.lastname: Shin
authors.forename: T-H
authors.initials: TH
authors.lastname: Kang
authors.forename: B
authors.initials: B
authors.lastname: Kim
authors.forename: Sehun
authors.initials: S
authors.lastname: Kim